Plywood and Oriented Strand Board

Plywood and oriented strand board (OSB) are both structural panels that are used widely in framing and subfloors, but each has its own strengths and weaknesses. Plywood is lighter, off-gasses less, swells less, and retains less water than OSB. OSB, however, is generally more uniform and more affordable, and it's considered the "greener" of the two options. Do your research before choosing the right one for your home project.